Bobbin control for battery looms



Dec. 7, 1-948. G. F. BAHAN BOBBIN CONTROL FOR BATTERY LOOMS 2 Shee'ts-Sheet 1 Filed NOV. 5, 1946 George E 5064/7 INVENTOR;

ATTORNEY;

Dec, 7, 1948. G. F. BAHAN BOBBIN CONTROL FOR BATTERY LOOMS 2 Sheets-Sheet 2 Filed Nov. 5, 1946 Illl George A 54/200 nvmvroz;

ATTORNEY Patented Dec. 7, 1948 UNI STATES PATENT OFFICE BOBBIN CONTROL FOR BATTERY LOOMS George F. Bahan, Charlotte, N. C.

Application November 5, 1946, Serial No. 707,840

- Claims.

This invention relates to a bobbin control for battery looms and is so designed and positioned that it eliminates vibration of the battery and the bobbin about to be transferred, prevents all of the bobbins from rotating, thus preventing breaking of the filling extending from the bobbins, holds the butt of the bobbin which is ready for transfer securely in its pocket in the rotary battery disc, engages the metallic rings on the bobbin butt and guides and guards the bobbin during transfer into the shuttle.

By engaging the bobbin about to be transferred, the whole battery is prevented from vibrating, thus eliminating breakage of ends of the bobbins, when transferred. When a bobbin with a broken end is transferred into the shuttle, the shuttle will not thread, thus resulting in thin places or loom stoppage, thus resulting in loss of production. This also resultsin the transferring of a greater number of bobbins, thus cutting down the number of looms an operator can keep refilled with bobbins.

By providin a resilient bobbin control finger which will move against the butt of the bobbin in transfer position, the bobbin is urged upwardly in the disc into perfect alignment and as the rings on the bobbin butt fit against the control finger, the bobbin is thus guided into the grooves in the bobbin holder spring in the shuttle to insure that the bobbin will be properly positioned in the shuttle. The control finger only contacts the rings on the bobbin and does not engage the wooden position of the bobbin. The. bobbin control finger does not descend far enough to be engaged by the shuttle box parts, during a transfer operation, thus insuring no damage.

some of the objects of the invention having been stated, other objects will. appear as the description proceeds, when taken in connection with the accompanying drawings, in which Figure 1 is an elevation, partly in vertical section, through the battery of the loom, and showing the invention attached thereto;

Figure 2 is a vertical sectional view taken along the line 2-2 in Figure 1;

Figure 3 is a vertical sectional view taken along the line 3-3 in Figure 1;

Figure 4 is an end' elevation, taken along the line i l in Figure 1;

Figure 5 is a top plan view of the bobbin support showing it detached from the loom, and showing portions of the loom and bobbin in dotted lines, and showing the portion of the conventional bobbin guide in bold lines;

Figure 6 is a vertical sectional view taken along the line B-S in Figure 5 Referring more specifically to the drawings, the numeral It indicates a conventional hopper of a battery loom having projecting therefrom a shaft I i on which is mounted battery disc I2 having a toothed wheel l3 secured thereto whereby the battery disc l2 will be rotated on shaft H by means of a conventional dog it operated by a transfer arm l5, pivoted as at I 6, and operated by a pivoted bunter ll, which is engaged by a dagger, not shown, to effect a transfer operation. This transfer arm has a conventional portion 18 for engaging the butt of the bobbin and an outwardly extendin arm having downwardly proj'cting portion 19 thereon for engaging an outer portion of a bobbin 2!] for transferring it into a shuttle, not shown, disposed therebelow.

The bobbin usually has three spaced rings 2| thereon, and there is a fixed bobbin guide Z2 secured to the frame of the loom for assisting in guiding the bobbin 2!! into the shuttle during a transfer operation. The battery disc [2 has a plurality of pockets 25 therein, into which the butt portions of the bobbins are adapted to fit, and the tips of the bobbins are supported by a conventional spring pressure means for holding the tip of the bobbins in position ready for a transfer operation.

It so happens that in conventional battery looms, the bobbins are not supported sufficiently to prevent their rotating and vibrating, and since the ends of the yarn on the bobbins are usually wound around the outward portion of the shaft of the battery, very often these ends are broken, and when a transfer operation takes place, the shuttle will not properly vthread, thus resulting in stoppages of the loom as a result of the filling detector stopping the loom on the absence of filling.

The hopper It has integral therewith a projection 26 on its lower portion having a transverse bore therethrough in which a bolt 27 is mounted. and which bolt is shouldered .to provide a restricted portion 21a and on this bolt has heretofore been mounted the conventional bobbin support but such bobbin supports have not held the bobbin about to be transferred firmly up in its pocket 25 to prevent vibration of the bobbins due to the vibrations in the loom during a weaving operation.

On this bolt portion 21a of bolt El is mounted on a sleeve 30, and the bolt is confined by a nut 3|. This portion 21:: penetrates a transverse hole in a bracket 32 which is arc-shaped on its upper end to coincide and fit against the arcuate rim portion of the hopper ID.

The bracket 32 also has mounted therein a shouldered bolt 35 and projecting outwardly from the bracket are parallel horizontal portions 36 and 31 which have vertically aligned holes therethrough in which is mounted a bolt 38. This bolt 38 has loosely mounted thereon a sleeve 40 which is substantially larger as to inside diameter than the outside diameter of the bolt 38, and disposed within the sleeve 40 and around the bolt 38 is a compression spring 41. The compression spring 4! in extended position is substantially longer than the sleeve 40 and pro- 3 jects downwardly below the lower ends of the sleeve 40. A leaf spring member 43 has a hole therethrough and is penetrated by the bolt 38 so that the end of leaf spring 43 having the large hole therethrough penetrated by bolt 38 can slide upwardly and downwardly on bolt 38, but this right hand end of the spring 43 is urged downwardly all the time by the compression spring 4|. The spring 43 rests on top of the bolt 35 and then curves downwardly and passes below the sleeve 30 and then projects upwardly and laterally and has a downwardly sloping portion 45 which is adapted to press against the rings on the butt of the bobbin about to be transferred and during the transfer operation presses the butt of the bobbin against the guiding portion" of fixed bobbin guide 22.

Immediately after a bobbin has been transferred from the battery into the shuttle, the

7 spring 43 occupies the position shown in Figure 6. When a bobbin is moved to transfer position it is held with its upper butt portion resting against the curved wall of the pocket 25, and in order to firmly hold this butt portion against the upper curved portion of the pocket 25, the

' spring 43 moves downwardly slightly to the po- 'sition shown in Figures 1 and 2, that is, the spring bin to pass thereby into the shuttle, at which time it springs back to its first position, namely, against the bushing 30 on portion 21a of bolt 21, and when the next bobbin about to be transferred moves to transfer position, the spring 43 then occupies the position shown in Figures 1 and 2.

It is thus seen that I have provided not only a bobbin support but a bobbin guide and one which will firmly hold the bobbin about to be transferred in transfer position and prevent vibration of the same, and at the same time it will prevent vibration of the battery disc l2 and thus prevent rotation or oscillation of the other bobbins in the battery, thus preventing breaking of the ends.

Not only does the member 43 properly support the bobbin about tobe transferred, but it serves as a resilient guide in association with guide 22 to properly guide the bobbin into the shuttle.

It is, of course, evident that when the bobbin is being transferred and the leaf spring 43 is moved to the dotted line position shown in Figure 1, the compression spring 4| will be com- -member mounted on a pivot for pivotal movement intermediate its ends, one end of the leaf spring member being downturned and adapted to engage the butt end of a bobbin about to be transferred, resilient means for engaging the other end of the leaf spring member and urging upwardly the bobbin about to be transferred, said leaf spring member being adapted to flex downwardly to exert pressure on the bobbin while it is being transferred and to flex upwardly again to engage the next bobbin which is moved to transfer position, and fixed means disposed between the pivot and the downturned end of the leaf spring member for limiting upward movement of said downturned end.

2. A bobbin control and guide for a battery loom having a hopper and a rotary disc mounted therein and provided with a plurality of cavities for holding the butt end of bobbins, a bracket secured to the hopper and having a pair of outwardly projecting bolts therein, a leaf spring member mounted above one of the bolts and disposed below the other of the bolts, one end of the leaf spring member being downturned and adapted to engage the butt end of a bobbin about to be transferred from the battery of the loom,

resilient means for exerting downward pressure on the other end of the leaf spring member to thereby resilently urge the first-named end into engagement with the bobbin about to be transferred to resiliently press it into its pocket and to resiliently guide and control the bobbin during a transfer operation.

3. In a battery loom having a hopper and a rotary disk disposed in said hopper and having cavities therein in which the butt ends of bobbins rest, a resilient member pivotally mounted between its ends on a fixed pivot on the hopper and having one end engaging the lowermost bobbin in the battery about to be transferred for resiliently pressing it into its pocket in the battery disk and for resiliently guiding the bobbin a it is transferred from the battery into the shuttle of a 100m, and resilient means engaging the other end of the resilient member at all times end being down-turned and adapted to press against the bobbin in the battery about to be transferred, spring pressed means for engaging and exerting downward pressure on the other 'end of the leaf spring member for pressing said one end into engagement with the bobbin about to be transferred.

limiting upward movement of the downturned 10 Number end, spring pressed means for normally urging the other end of the leaf spring member downwardly to urge the downturned end of the leaf spring member into resilient engagement with the bobbin to hold it firmly in its associated pocket in the battery disk to prevent vibration of the bobbin and to also prevent vibration of the battery disk and the other bobbins contained therein.

GEORGE F. BAHAN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Name Date 834,930 Northrop Nov. 6, 1906 835,093 Benoit Nov. 6, 1906 1,297,420 Thackston Mar. 18, 1919 1,487,512 Epps Mar. 18, 1924 1,550,922 Murray Aug. 25, 1925 1,555,348 Bahan Sept. 29, 1925 

